Renesas Electronics

R5F21236JFP - 16-Bit 20MHz MCU 32KB Flash | Renesas

Référence : R5F21236JFP ✗ Fin de vie
En stock Expédié sous 1 à 3 jours ouvrés
3/5 V Vdss 48-LQFP (7 x 7 mm) Package 20 MHz Speed 32 KB flash Memory
À partir de $2.7351 USD / unité
MOQ : 1 |
Prix mis à jour : 2026-10-23
Tarifs dégressifs
Qté Prix unitaire Total
1 $2.7351 $2,74
10 $2.7351 $27,35
100 $2.7351 $273,51
500 $2.7351 $1 367,55
1 000 $2.7351 $2 735,10
ℹ️ Tous les prix sont en USD

R5F21236JFP Présentation

The Renesas Electronics R5F21236JFP is a 16-bit R8C/23 microcontroller operating at up to 20 MHz, with 32 KB of flash memory and a 48-pin LQFP package. The verified product information identifies a 3/5 V device and describes it as an R8C-family MCU intended for embedded control applications. Its 32K x 8 flash organization, 16-bit architecture, and R8C CPU core place it between general-purpose embedded controllers and more specialized automotive networking devices.

A microcontroller is a semiconductor device that integrates a CPU core, program memory, data memory, peripherals, and I/O into one package. In the system hierarchy, the R5F21236JFP belongs to the microcontroller class, uses the R8C CPU core, and provides embedded processing for control, communication, measurement, and automation functions. The R8C/23 family is specifically described by Renesas as a non-promotion family supported for customers that have already adopted the products.

Key verified features include a 16-bit MCU architecture, 20 MHz operation, 32 KB flash storage, 3/5 V supply operation, and a 48-LQFP package measuring 7 x 7 mm according to the distributor listing. The R8C core is described as using sophisticated instructions intended to provide high instruction efficiency. The device also includes embedded data-flash blocks according to the retrieved R8C/23 material, while the exact density, voltage tolerances, peripheral list, and memory timing figures require the manufacturer datasheet.

The verified R8C/23 description also identifies one CAN module and suitability for in-vehicle or FA networking. This makes the MCU relevant to industrial networking and automotive-adjacent control platforms, provided the exact electrical and qualification requirements are checked. Because the product is listed as non-promotion and supported only for previously adopted customers, lifecycle planning should confirm availability before new design commitments.

Typical applications include industrial control equipment, factory automation nodes, CAN-connected machines, embedded instrumentation, and automotive or FA networking modules. The 48-LQFP package supports conventional PCB assembly and external interconnection, while the 20 MHz R8C core provides a balance of processing capability and embedded control integration. Exact RAM, peripheral, electrical, and pin-level requirements are not present in the supplied search data and are marked for verification.

Before design-in, engineers should obtain the official Renesas datasheet, confirm the exact package pinout, validate 3/5 V operating conditions, and check the CAN and data-flash requirements against the system architecture. For sourcing, compare authorized inventory and lifecycle status rather than assuming a distributor listing means a new design is supported.

Alternatives de remplacement direct pour R5F21236JFP — même boîtier, compatible broche à broche. Les références à boîtier différent nécessitant une retouche du PCB sont exclues.

Outil de comparaison rapide — sélectionnez des références alternatives pour une comparaison côte à côte :

R5F21226JFP#U1

✅ Remplacement direct
📦 48-LQFP (7 x 7 mm)
Related 16-bit, 32 KB-flash 48-LQFP MCU, but the supplied data does not verify pin, peripheral, timing, or memory equivalence.

📋 Alternative de référence (hors catalogue)

R5F21236JFP Valeurs maximales et caractéristiques électriques

Product Type 16-bit microcontroller
CPU Core R8C
Maximum Operating Frequency 20 MHz
Program Memory 32 KB flash
Flash Organization 32K x 8
Tension d'alimentation 3/5 V
Boîtier 48-LQFP (7 x 7 mm)
Nombre de broches 48 pins
Architecture 16-bit
Communication Peripheral 1 CAN module
Data Flash Embedded data-flash blocks
Address Space 1 Mb
Product Status Non-promotion; supported for customers that have already adopted the product
Température de fonctionnement -40 °C to +85 °C
Lead-Free Status Pb-free
Type de montage Surface mount
Manufacturer Renesas Electronics
Datasheet Availability Manufacturer datasheet identified
Lifecycle Verification Confirm current availability with Renesas before new design commitment

Guide de configuration des broches du R5F21236JFP 48-lqfp (7 x 7 mm)

Configuration des broches du R5F21236JFP (boîtier 48-lqfp (7 x 7 mm)). Ce circuit intégré numérique comprend des GPIO, des interfaces de communication (UART, SPI, I2C) et des broches d'alimentation. Consultez la fiche technique du fabricant pour les fonctions alternatives des broches et les options de configuration. Indispensable pour la conception de systèmes embarqués et la conception de circuits imprimés.

Schéma de brochage du boîtier 48-lqfp (7 x 7 mm) pour le R5F21236JFP

Aucune donnée de brochage détaillée disponible pour R5F21236JFP.

Consultez la fiche technique pour la configuration complète des broches.

Applications typiques

R5F21236JFP convient pour 6 applications: Industrial Control Equipment, Factory Automation Networking, Automotive-Adjacent Networked Control, Embedded Instrumentation, CAN-Connected Sensor Node, Legacy Platform Maintenance.

🏭

Industrial Control Equipment

The R5F21236JFP fits embedded industrial control because it combines a 16-bit R8C CPU core, 20 MHz operation, 32 KB flash, and a 48-LQFP package in one device. The verified material describes an MCU with one CAN module, which can support networked machine control when combined with an appropriate transceiver and termination network. Use it for controllers where deterministic embedded processing and compact integration matter, while checking the exact RAM, I/O, timing, and electrical limits in the Renesas datasheet.

🌐

Factory Automation Networking

The R5F21236JFP is suitable for factory automation networking when a controller must combine local processing with CAN connectivity. The verified R8C/23 description explicitly identifies one CAN module and mentions suitability for FA networking. In a practical design, the MCU would handle protocol processing, state-machine control, and local I/O while a CAN transceiver handles the physical bus. Verify transceiver selection, bus topology, termination, isolation needs, and the manufacturer's electrical timing limits.

🚗

Automotive-Adjacent Networked Control

The R5F21236JFP can be considered for automotive-adjacent or in-vehicle networking platforms because the supplied R8C/23 material identifies one CAN module and explicitly references in-vehicle networking suitability. Its 20 MHz 16-bit core can support embedded control tasks, while 32 KB flash provides a compact firmware footprint. This application requires stricter review than ordinary industrial control: confirm AEC-related requirements separately, verify the exact operating temperature and electrical limits, and use the official Renesas documentation before production release.

🔧

Embedded Instrumentation

The R5F21236JFP can serve as the control core in compact embedded instrumentation because its 16-bit R8C architecture operates up to 20 MHz and integrates 32 KB flash in a 48-LQFP package. The MCU can execute measurement sequencing, calibration logic, and communications control while external sensors and amplifiers handle analog conditioning. The supplied data does not specify ADC channels, DAC functions, RAM, or comparator resources, so analog and mixed-signal suitability must be confirmed from the exact datasheet rather than inferred from the family name.

🧩

CAN-Connected Sensor Node

The R5F21236JFP is a plausible controller for a CAN-connected sensor node because the verified product information identifies one CAN module and a 20 MHz 16-bit processing core. In this architecture, the MCU would acquire sensor data through suitable external interfaces, process status information, and publish measurements over a CAN bus. The 48-LQFP footprint supports conventional surface-mount assembly, but the design must verify available I/O pins, ADC resources, power requirements, and CAN timing because those values are absent from the supplied excerpts.

🖥️

Legacy Platform Maintenance

The R5F21236JFP is particularly relevant to maintenance and clone designs for equipment already built around the R8C/23 family. Renesas describes the family as non-promotion and supported for customers that have already adopted these products, so preserving an existing platform may be more practical than migrating immediately to a new MCU. A drop-in replacement cannot be assumed; validate pin compatibility, boot behavior, memory map, CAN resources, firmware dependencies, and lifecycle supply before changing the board or ordering replacement parts.

What is the Renesas R5F21236JFP?
The Renesas R5F21236JFP is a 16-bit R8C/23 microcontroller with a maximum operating frequency of 20 MHz, 32 KB of flash memory, and a 48-LQFP package. According to the verified DigiKey listing, it is an MCU with 32K x 8 flash and 3/5 V operation. Renesas describes the family as non-promotion and supported for customers that have already adopted it.
What are the key specifications of R5F21236JFP that engineers should know?
The R5F21236JFP combines a 16-bit R8C CPU core, 20 MHz operation, 32 KB flash, 3/5 V supply operation, and a 48-LQFP package. The verified product listing also identifies one CAN module, embedded data-flash blocks, and a 1 Mb address space. These figures come from the supplied distributor and Renesas family information; exact RAM, I/O, timing, and electrical limits should be confirmed in the official datasheet.
Is R5F21236JFP still active?
The supplied Renesas product information identifies the R8C/23 family as non-promotion and supported only for customers that have already adopted these products. For this page, the lifecycle status is therefore recorded as NRND rather than active. New production commitments should be confirmed directly with Renesas, and distributors should not be treated as the sole authority for lifecycle status.
Where can I download the R5F21236JFP datasheet?
The official Renesas product page for the R5F21236JFP#U1 variant is the preferred starting point for the manufacturer datasheet and product documentation. The supplied search results also identify a 52-page PDF hosted by a third-party datasheet site, but that is not treated as the official source. The document number and revision were not supplied and are intentionally not inferred.
Where can I find the R5F21236JFP pinout?
The R5F21236JFP pinout must be taken from the official Renesas datasheet for the exact package and orderable variant. The verified data confirms a 48-LQFP package, but the supplied excerpts do not provide the complete pin-number-to-signal mapping. This page therefore does not invent pin names or numbering; verify all 48 pins, power pins, ground pins, CAN pins, and programming signals before PCB layout.
Can R5F21236JFP be used for CAN networking?
Yes, the retrieved R8C/23 material states that the MCU has one CAN module and is suited to in-vehicle or FA networking. That makes it relevant to industrial and automotive-adjacent networked control systems. The exact CAN electrical interface, transceiver requirements, timing, termination, and operating-mode limits are not included in the supplied data and must be checked in the datasheet.
What is the R5F21236JFP supply voltage?
The verified distributor information identifies the R5F21236JFP as a 3/5 V MCU. That wording indicates support for a 3 V or 5 V operating class, but it does not replace the detailed electrical operating ranges in the manufacturer datasheet. Before design-in, verify minimum and maximum supply voltage, I/O levels, reset behavior, and timing conditions for the exact R8C/23 device variant.
R5F21236JFP vs R5F21226JFP#U1 - which is better?
The supplied comparison data identifies both R5F21236JFP and R5F21226JFP#U1 as 16-bit, 32 KB-flash MCUs in 48-LQFP packages. However, the available evidence does not establish pin-for-pin compatibility, equivalent peripheral configuration, or identical electrical limits. Treat them as related comparison parts rather than guaranteed drop-in replacements until the Renesas datasheets and package drawings are compared.
What is the best drop-in replacement for R5F21236JFP?
No verified drop-in replacement can be named from the supplied cross-reference data. The available results point to generic cross-reference tools and a related R5F21226JFP#U1 comparison, but they do not prove identical pinout, memory map, peripheral configuration, voltage behavior, or timing. For a replacement, require manufacturer confirmation or a complete engineering comparison rather than treating package similarity as sufficient.
Is R5F21236JFP suitable for a new industrial design?
The R5F21236JFP can be suitable for an existing adopted R8C/23 platform because Renesas describes the family as supported for customers that have already adopted the products. For a new industrial design, first confirm lifecycle, availability, qualification, and exact operating requirements with Renesas. Its 20 MHz R8C core, 32 KB flash, CAN capability, and 48-LQFP package are useful, but non-promotion status creates procurement risk.
What can replace R5F21236JFP?
A direct replacement for the R5F21236JFP is not established by the supplied verified data. The related R5F21226JFP#U1 is listed as a comparison part, but pin compatibility and functional equivalence are not proven. Any substitution must match the 48-LQFP footprint, R8C memory and peripheral requirements, 3/5 V electrical behavior, CAN resources, startup expectations, and software support.
How much does R5F21236JFP cost?
The verified LCSC result for the related R5F21236JFP#U1 lists a starting price of $2.7351. That listing is not a verified price for every R5F21236JFP order code, quantity break, or distributor. Treat the amount as reference pricing as of 2026-10-23 and obtain a current quotation for the exact MPN, quantity, condition, and authorized supply channel.
Where can I buy R5F21236JFP?
R5F21236JFP can be investigated through the listed Mouser, DigiKey, Octopart, Xecor, and related distributor listings. Availability and pricing are channel-specific, and the verified data does not establish XAIPART stock or a firm lead time. Confirm the exact orderable suffix, authorized status, date code, packaging, and lifecycle position before purchasing, especially because Renesas classifies the family as non-promotion.
What is the lead time for R5F21236JFP?
A reliable lead time for R5F21236JFP is not provided in the verified data. The Octopart result provides a comparison starting point, while the LCSC result is associated with the R5F21236JFP#U1 variant, but neither establishes a guaranteed XAIPART lead time. Request a current quotation and inventory confirmation for the exact suffix; treat the posted $2.7351 reference price as valid only as of 2026-10-23.
What design considerations apply when using R5F21236JFP?
The main design considerations are supply-voltage verification, exact pin assignment, CAN implementation, memory compatibility, and procurement risk. The verified data confirms 3/5 V operation, 20 MHz operation, 32 KB flash, one CAN module, and a 48-LQFP package, but it does not provide complete RAM, timing, pin, or absolute-maximum ratings. Use the official Renesas documentation and validate hardware, firmware, and lifecycle requirements together.

Données de référence d'ingénierie pour R5F21236JFP — comparaison, recommandations de conception et informations de conformité.

Guide de sélection

Choose the R5F21236JFP when maintaining or designing an adopted R8C/23 platform that needs a 16-bit core, 20 MHz operation, 32 KB flash, 3/5 V operation, and one verified CAN module. Its 48-LQFP package is suitable for conventional embedded layouts, but the complete pinout and electrical limits must be obtained from Renesas documentation. The R5F21226JFP#U1 is a related same-package comparison candidate, not a guaranteed replacement; use it only after checking memory, peripheral, pin, timing, and software compatibility. For a new product with uncertain supply, consider a currently promoted MCU platform rather than relying on this non-promotion family, and validate any proposed substitute through manufacturer or authorized-channel confirmation.

Comparaison avec les alternatives

Paramètre Ce produit R5F21226JFP#U1
Brand Renesas Electronics Renesas Electronics
Package 48-LQFP (7 x 7 mm) 48-LQFP
CPU Architecture 16-bit 16-bit
Flash Memory 32 KB 32 KB
Supply Voltage 3/5 V 3.3 V/5 V family indication in comparison listing

Principaux différenciateurs

  • R8C/23 family positioning (vs R5F21226JFP#U1)
  • Verified integrated networking resource (vs R5F21226JFP#U1)
  • Documented architecture and memory alignment (vs R5F21226JFP#U1)

Notes de conception

The verified 3/5 V classification is not a substitute for the complete electrical table. Before layout, confirm the exact supply range, I/O voltage domains, reset requirements, absolute maximum ratings, and power-consumption conditions in the official Renesas datasheet. Place local decoupling close to the MCU supply pins and verify the selected external components against the manufacturer recommendations. Do not use the LCSC reference price or distributor inventory as evidence that a particular voltage variant is electrically identical.

The R5F21236JFP uses a 48-LQFP package, so the PCB footprint, pin numbering, exposed thermal considerations, and assembly clearances must match the exact package drawing. Because the supplied data does not include the complete pinout, verify every power, ground, programming, reset, clock, and CAN-related connection against the official datasheet. Treat the package name alone as insufficient evidence for a drop-in layout approval.

The retrieved product page describes the R8C/23 family as non-promotion and supported for customers that have already adopted it. A distributor listing or comparison page can therefore be misleading for a new production program. Confirm lifecycle, authorized sourcing, date code, package suffix, and software/toolchain support before committing the R5F21236JFP to a design. Also do not assume that the R5F21226JFP#U1 is pin-compatible merely because both are described as 16-bit, 32 KB-flash, 48-LQFP devices.

Informations de conformité

RoHS
Unknown
REACH
Unknown
AEC-Q100
Unknown
Sans plomb
Yes
Sans halogène
Unknown
Minerais de conflit
Unknown

The verified Mouser listing identifies R5F21236JFP#U1 as Pb-free. RoHS, REACH, halogen-free, conflict-minerals, and AEC-Q100 status were not explicitly established in the supplied data. The family is described as non-promotion, not as obsolete, and requires lifecycle confirmation before new production use.

Données vérifiées le : 2026-10-23 — données vérifiées et sélectionnées par l'équipe d'ingénierie composants de XAIPART

Recherches associées

R5F21236JFP R5F21236JFP datasheet Renesas R5F21236JFP R5F21236JFP 16-bit 20MHz microcontroller R5F21236JFP 32KB flash R5F21236JFP 48-LQFP pinout R5F21236JFP CAN networking R5F21236JFP vs R5F21226JFP#U1 R5F21236JFP drop-in replacement R5F21236JFP price R5F21236JFP buy online R5F21236JFP lead time R5F21236JFP in stock Can R5F21236JFP replace R5F21226JFP? R8C/23 industrial automation microcontroller

Composants & termes associés

Renesas Electronics R5F21236JFP R5F21226JFP#U1 R8C/23 R8C CPU core 16-bit microcontroller microcontroller embedded controller semiconductor 32 KB flash 20 MHz 3/5 V MCU 48-LQFP LQFP package family CAN module factory automation networking in-vehicle networking data flash lead-free non-promotion Renesas datasheet DigiKey Mouser Octopart
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